overview of, ASPNET User, Auto mode, 348 AutoIncrement property, 202 AutoNumber fields, 100 AVG function, 71

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1 INDEX 431

2 432 Index A AcceptChanges method DataSet update and, , 206, 207 with ForeignKeyConstraint, 224 AcceptRejectRule, 224 Access/Jet engine, 27 Add method, , Added enumeration, 205 AddNew method, 43 ADO 2.x ADO.NET versus, 157, 158 concurrency conflicts in, 267 ADO.NET batch updates and, 43 concurrency conflicts in, DataViews, JET and, 27 objects of, 40 strongly typed DataSets, tables and column mappings, XML, reading, ADO.NET, Data Providers, Command object, Connection, Command designtime components, Connection object, DataReader object, objects of, overview, Transaction object, 186 ADO.NET, DataAdapter, methods, properties of, multiple related tables, combining, populating DataSet, update commands, setting, updating data source, ADO.NET, DataSet, accessing data from DataTable, applications, components of, DataSet component usage, DataTable, adding data to, DataTable schemas, defining, table constraints, table relations, updating, Aggregate functions. see Structured Query Language (SQL) Aggregate queries. see Queries Aliasing, 67 AllowDBNull property, 202, 212 ALTER clause, 81 AND operator, 56 Application interfaces, 159 Application logic, 412 Applications, DataSet, Archiving data, AS clause, 67, 68 ASP.NET database access through, database performance improvement, overview of, ASPNET User, Auto mode, 348 AutoIncrement property, 202 AutoNumber fields, 100 AVG function, 71 B bcp (bulk copy program), 311 BeginEdit method, 207 BETWEEN operator, 57 Bigint data type, 9 Binary data type, 9 Binding. see Data binding BindingContext object, 39 40, 43 Boolean data type, 9 Browser, data. see Data browser Bulk copy program (bcp), 311 Business benefit, Business case described, 3 multiple related tables, combining, SQL Script, database creation with, tables/relationships, designing, 5 7 trigger, creating, viewing data from different sources, writing archive routine, XML files, preparing for business partners, Business logic, C Caching data, 196 Calculations, Cascading updates/deletes, CaseSensitive property, 201 Catalog command, 173, 174 Change Scripts. see Scripts Char data type, 9 Child table combining multiple tables, 261 constraints, 220 relations of, ChildRelations property, Classic ADO. See ADO 2.x Clear method, 41 ClearErrors method, 208

3 Index 433 Client-server architecture, CLR (Common Language Runtime), 158 Collation, default, 97 Column accessing data from, concurrency conflicts and, for DataTable object, defined, 2 error of, ID, 119 mappings, PrimaryKey property and, 212 table constraints and, typed DataSet for, 286, 289 COM object, 412 ComboBoxes, 279, 280 Command design-time component, Command files, Command object DataAdapter and, 235, 237 defined, 161 executing commands, in general, with parameters, stored procedures, XmlReader, creating from, Command parameters, Command properties, DataAdapter, 235 CommandBuilder object, CommandText property, 167 CommandTimeout property, 167 CommandType property, 167, 181 Common Language Runtime (CLR), 158 Components, DataSet, Concatenated keys, 103 Concurrency conflicts, Concurrency violation, Connection design-time component, Connection object of ADO.NET, DataAdapter and, 235, 237 defined, 161 Connection string, 168 CONSTRAINT clause, Constraint object, 198 Constraints adding to tables, referential integrity, Controls, , COUNT function, 71 CREATE clause, 78 CREATE INDEX clause, 80 Create Scripts. See Scripts Create UNIQUE option, 15 Criteria, specifying, Criterion, Current enumeration, 206 D Data adding to DataTable, control, 36 controlling access to, entry, 16 files, 96 group/summarize with SQL, locks, manipulating with SQL, manipulation, 7 8 in middle tier, types, 8 10 XML, access with, 323 Data-aware controls, Data binding.net data-aware controls and, example of, programmatic, in Visual Basic, 36 Data-bound forms creating new records in, deleting records from, validating data entry in, Data browser application creating, updating records in, Data-definition commands, 7 Data Definition Language (DDL) advantages of, 97 defined, 50 with ExecuteNonQuery method, 173, in SQL, Data-definition language script, 24 Data-manipulation command, 74 Data Manipulation Language (DML) commands, 76 defined, 50 VS.NET and, 74 Data provider, defined, 159 Data Providers, ADO.NET, ADO.NET overview, archive routine, Command object, Connection, Command designtime components, Connection object, DataReader object, objects of, Transaction object, 186 Data source DataAdapter and, 234 populating DataSet from, updating, Data tier,

4 434 Index DataAdapter, ADO.NET, methods, properties of, multiple related tables, combining, populating DataSet, Update commands, setting, updating data source, DataAdapter Configuration Wizard command parameters by, SQL Update statement by, update commands with, DataAdapter, defined, 161 Database accessing with SQL Query Analyzer, ASP.NET, accessing through, ASP.NET, performance, business cases, 3 connection, , data types, 8 10 default, 107 defined, 2 3 designing, 4 7 diagrams, creating, ExecuteNonQuery method and, inconsistent, 28, 31 inefficient, 31 normalization, objects, data manipulation with, 7 8 references, 296, 305 relationships, removing objects from, 132 schema, creating, tables and fields, 3 user interface, creating, Database engine, 46 Database platform, 3 Database project, Database roles, 126, 407 Database schema. See Schema, database Database Views for data access control, 108 with Enterprise Manager, in production, 112 with Query Analyzer batch, DataBindings collection, 41 DataBindings property, 38 DataColumn object, 197 DataGrid CommandBuilder object and, for data viewing, , records and, 37 working with, DataReader object of ADO.NET, data manipulation and, 7 defined, 161 DataRelation object, 198, DataRow object, 198, 207 DataRowVersion, 206 DataSet populating with DataAdapter, strongly typed, 158, table and column mappings, XML and, DataSet, ADO.NET, 156, accessing data from DataTable, adding data to, applications, components of, DataSet component, using, table constraints, table relations, updating, DataSet component, DataSet Generator, , 288 DataTable object accessing data from, adding data to, DataView for, defined, 197 finding, filtering, sorting rows, populating with DataAdapter, schemas, defining, table relations, updating, , DataTableMappings, 235 DataView object viewing data from different sources, viewing data with, DataViewManager object, 274 DataViewRowState, 214 Datetime data type, 9 DBConcurrencyException, DDL. see Data Definition Language (DDL) Decimal data type, 9 Default enumeration, 206 DefaultView property, 273 Delete command, Delete method, 205 DeleteRule property, Deletes, cascading, Delimiter, 56 DESC keyword, 59, 60 Descending order sorting, 59 Design-time component, , Detached enumeration, 206 Diagrams, database Microsoft Visio and, overview of, DiffGram examples of,

5 Index 435 GetChanges method and, XML format, described, XMLReadMode enumeration value, 348 XMLWriteMode enumeration value, 355 Disconnected applications, 157 DisplayChildRows, 218 DisplayConstraints, 222 DisplayDataSet subroutine, DisplayRelations procedure, 216 Dispose method, 420 Distributed applications, 157 DML. See Data Manipulation Language (DML) Document Object Model (DOM), 321, DROP clause, 80 E Editing model, DataView, 275 Elements, XML, EnforceConstraints property, 220 Entity relationship diagram (ERD), 20 Enumeration, 165, 279 Envelope, 424 Errors, Execute XmlReader method, 173 ExecuteNonQuery method, , 192 ExecuteReader method DataReader object and, function of, 173, 180 ExecuteScalar method, 173, ExecuteXmlReader method, 167 EXISTS test, 137 Explicit update commands, Expression property, 197 Expressions, column, 202 EXtensible Markup Language (XML) ADO.NET support of, 157, 158 business case, file preparation, classes in.net, data access and, 323 DataView and, 285 DiffGrams, family of technologies, overview of, reading, reports with, SQLXML 3.0 and IIS, extending with, Web Services and, 423, 424 writing, XmlDataDocument Object, XmlReader creation, Extensible Stylesheet Language Transformations (XSLT) described, 320, 321 reports, creating with, Extensible Stylesheet Language (XSL), 320, 321. See also EXtensible Markup Language (XML) F Fields accessing with DataReader object, defined, 3 overview of, 2, 3 sorting on multiple, Fill method of DataAdapter, 234, 235 to retrieve data, table and column mappings and, in typed DataSet, 289 Find method, , 274 Find Rows method, 274 Float data type, 9 Folders, 297 ForeignKeyConstraint for designating foreign key field, row deletion and, 264 for table constraints, Form. See Data-bound form Fragment, 348 FROM clause, G GET request, 423 GetChanges method, , GetChildRows method, GetErrors method, 208 GetNames method, 279 GetRowCount function, GetRowCount object, GetXml, 355 Grant command, 130 Graphical database schema. see Schema, database Graphical table building, 97 Graphical tools. See Microsoft Visio Group queries described, having clause and, SQL aggregate functions, SUM function and, 70 Grouping data, H HasErrors property, 208 HasVersion method, 207

6 436 Index Having clause, Headers, descriptive, 135 Hide column, 112 HTML client code, 415 HTML controls, 391 HTTP protocol, ID field, 7 Identity column creating, in SQL Server tables, 99 triggers and, 119 IgnoreSchema, 348, 355 IIS (Internet Information Server), Image data type, 9 IN operator, 59 Index, designating, InferSchema, 348 Inheritance, 419 Insert command, Installation, SQL Server 2000, 87, Int data type, 9 Intellisense statement, 286, 290 Internet Information Server (IIS), IsDate function, 413 Isql, 74 ItemData property, 276 I J Jet, 27, 100 Jet database engine, 84, 156 Joins defined, 2 described, expressing in SQL, outer, Juncture table, 35 K Keys, concatenated, 103 Kill command, 132 L Left join, 65. See Outer joins LIKE operator, 58 Lock, Log files, 96 Logins, M Make-table query. See SELECT INTO query Many-to-many relationships, 35 Mappings, Master/detail form, 35 MAX function, 71 Memory, system, 87 Microsoft ADO.NET by, 156 middle-tier technologies and, 412 Web Services and, 423 Microsoft Access, 58 Microsoft Data Engine (MSDE), 86 Microsoft SQL Server 2000 business case, database creation, Create Scripts in, 298 creating tables with, data, controlling access to, database access with Query Analyzer, database, removing objects from, 132 described, Enterprise Manage for database creation, Enterprise Manager, running, installation requirements for, 87 installing, security attributes for, SQLXML 3.0 and, 329 start up, controlling, starting and stopping, stored procedures, creating/running, triggers, creating, users and security, managing, view/stored procedure, displaying, Microsoft SQL Server 2000 DBA Survival Guide (Spenik and Sledge), 87 Microsoft Visio database schema creation with, 10 schema, viewing/altering with, Microsoft.Data.Odbc namespace, 164 Middle-tier components, 112 Middle-tier technologies for presentation logic, using data in, MIN function, 71 MinimumCapacity property, 201 Mixed Mode, 90 Modified enumeration, 206 Money, 66 Money data type, 9 MSDE (Microsoft Data Engine), 86 Multiple tables, combining, N Names, 256 Namespaces importing,

7 Index 437 for Web Services, 429 in XML, 318 Naming conventions column mappings for, 271 for objects, 52 in SQLXML 3.0, 334 for tables, 7 for views, 110 Nchar data type, 9.NET data-aware controls in, Data Provider objects of, database connectivity and, 36 databinding with, 39 stored procedures and, 114 XML, classes in, NET Framework ADO.NET integration with, 157 ADO.NET objects within, data manipulation with, 7 middle-tier technologies of, 412 New technology, 156 NewRow method, Normalization overview of, relationships, many-to-many, 35 relationships, one-to-many, relationships, one-to-one, 34 Ntext data type, 9 Null, defined, 65 Null value, 170, 268 Nvarchar data type, 9 O Objects categories of, 12 data manipulation and, 7 8 exposing through Web Services, removing from database, 132 XmlDataDocument, Odbc Data Provider function of, 160 ParameterCollection object and, 169 scalar value with, ODBC (Open Database Connectivity), 21, 85 OdbcCommand, 172 OdbcConnection object, 162 OLE DataBase (OLE DB), 85 Oledb Data Provider, 160, 169 Oledb namespace, OledbCommand component, OledbConnection component, OleDbConnection object, 162 One-to-many relationships, 6, Open Database Connectivity (ODBC), 21, 85 OpenSchema method, 162 Operators, Optimistic concurrency control, OR operator, 56 Oracle.NET Data Provider, 160 ORDER BY clause, Orders grid, Original enumeration, 206 Osql, 311 Outer joins, P Parameter object, 161, 167, , 176 ParameterCollection object, 169 Parameters property of ADO.NET Command object, 167, code to assign values to, Parent table combining multiple tables, 261 constraints, 220 relations of, ParentRelations property, Password, 92 Persisting data, 196 Pessimistic concurrency control, 266 Plumbing, 412. see also Middle-tier technologies POST request, 423 Presentation logic, Preview Data feature, 257 Primary key designating, marking column as, methods to generate, 102 PrimaryKey property for DataView project, 284 Fill method and, 240 finding rows and, 212 setting, Print command, 152 Q Queries append, 76 calculations with, database projects and, database schema and, 10 defined, 2, 50 designing with graphical tools, 110 for grouping/summarizing data, joining related tables with, subqueries, 73 testing with Server Explorer, top percentage, 61 union, Query Designer,

8 438 Index R RDO (Remote Data Objects), 156 Read () method, 182 ReadDataMapped function, ReadOnly property, 202 ReadSchema, 348 ReadXML, 347 Real data type, 9 Records.NET and, 36 data-bound forms and, designating source of, nested, 349 overview of, 3 4 retrieving, returning top/bottom, updating in data browser application, working with, Recordset, 156 References, database, 296, 305 Referential integrity constraints, RejectChanges method DataSet update and, , 206 with ForeignKeyConstraint, 224 RowUpdating event and, 46 Relational database, 2. See also Database Relations property combining multiple tables with, 258, 261 for table relations, 216 Relationships cascading updates/deletes, between controls and data fields, creating with Server Explorer, 18 described, 5 designing, 5 7 many-to-many, 35 one-to-many, 6, one-to-one, 34 overview of, referential integrity constraints, Remote Data Objects (RDO), 156 Remoting data, 196 Remove method, 205 RemoveAt method, Reports, Return value of ExecuteNonQuery method, 174, 176 of stored procedure, Reusable middle-tier components, Reverse engineering, Revoke command, 130 Right join, 65 Roles, 126, 407 ROUND function, 66 Row filter expression, 273 Row state filter, 273 RowError property, RowFilter property, 274, 279 Rows accessing data from, adding to DataTable, concurrency conflicts and, , 269 in DataTable schema, 201 DataView object for, deletion of, 264 finding, filtering, sorting, typed DataSet and, 289 updating data source and, updating in DataTable, RowState enumeration, RowUpdating event, 45 Rule properties, S Scalability, 157, 266 Scalar value, Schema, database creation of, 10 of DataTable, defining, index/primary key, designating, software design methodology vs., 27 typed DataSet for, 285 Visio and, Visual Studio and, Schema Editor, Scripts, change, command files and, create, running, Security attributes in Query Analyzer, Enterprise Manager for, in SQLXML 3.0, 333 testing in SQL Query Analyzer, 129 SELECT clause, SELECT INTO query, 77, Select method DataView and, 273 for rows, for updating data source, 241 Select statement, 254, 268 SelectCommand property CommandBuilder object and, 243 with DataAdapter, 235 for loading tables in DataSet, 239 Semantics, 319 Server controls, 391 Server Explorer cascading updates/deletes and, 30 31

9 Index 439 data entry with, 16 database connection with, database creation with, database diagram creation with, index/primary key designation with, records in, testing queries with, testing referential integrity constraints with, Server.HTMLEncode, 407 SET clause, 74 SetColumnError method, 208 Setup Type dialog box, 88 ShowCustomers subroutine, 416 ShowGetRowCount method, 425 Side-by-side versioning, 412 Simple Object Access Protocol (SOAP) described, 321 for Web Services, , 427 Sledge, Orryn, 87 Smalldatetime data type, 9 Smallint data type, 9 SOAP. See Simple Object Access Protocol (SOAP) Software design methodology, 27 Solution Explorer for Create Scripts generation, 299, 300 scripts, running within, 304 Sorting DataView based on, 273, 284 with ORDER by, table design and, 6 Spenik, Mark, 87 Sp_help, 106 Sp_helptext, 118 Sp_who, SQL. See Structured Query Language (SQL) SQL Books Online, 87 SQL DataAdapter object, 43 SQL Join, 239, 244 SQL Query Analyzer batch, creating views with, database access with, defined, 74 security in, stored procedures in, SQL Script database creation with, for loading data, 117 SQL Server. See also Microsoft SQL Server 2000; Server Explorer database diagramming for, 19 logins, adding ASPNET User, Microsoft Access and, 58 SQL Server Authentication, 125 SQL Server database engine, 30 SQL Server Enterprise Manager automatic scripts and, 306 creating views in, database creation with, managing roles with, running, stored procedures in, table creation with, SQL Service Manager, SQL statements, 241, 282 SQL Update statement, SqlClient Data Provider for data retrieval, 236 ParameterCollection object and, 169, 170 performance of, 160 SqlCommand component, 185 SqlCommand object, 167 SqlCommandBuilder, SqlConnection component, 185 SqlConnection object, 162, SqlDataAdapter, 240, 286 SQLXML, SQLXML 3.0 configuration results of, installing/configuring, SQL Server, extending with, 329 Static variables, 405 STDEV function, 71 Stored procedures ASP.NET, performance tuning with, Command object and, described, displaying text of, ExecuteNonQuery method and, 176, 178 ExecuteScalar method and, explicit update commands and, in middle tier, middle-tier components vs., 112 sp_help, 106 sp_who, in SQL Query Analyzer, in SQL Server Enterprise Manager, system-provided, 107 in update commands, updating data source and, 241 Strongly typed DataSets, Structured Query Language (SQL) aggregate functions of, 71 calculations with, FROM clause in, AS clause in, 67 command categories, 50 command naming conventions, 105

10 440 Index Structured Query Language (SQL) (continued) commands to Query Analyzer, 108 data manipulation with, DDL commands in, delete command, group/summarize data in, insert command, joining related tables with, ORDER BY clause in, query, defined, 50 query testing with Server Explorer, RDS systems and, 50 SELECT clause in, SELECT INTO query and, 77 subqueries in, 73 TOP keyword in, union queries with, update command, WHERE clause in, Subqueries. See Queries SUM function, 70, 71 System base classes, 159 System.Data.Odbc namespace, 160, 161 System.Data.OleDb namespace, 160, 161 System.Data.SqlClient namespace, 160, 161 T TableDirect command, TableMappings property, Tables. See also DataSet; DataTable adding constraints to, combining multiple, creating with SELECT INTO, 77 defined, 2, 3 designing, 5 7 joining related, in SQL Server, virtual, 121 Technology, 156, 429 Test string representation, 165 Text data type, 9 Three-letter acronym (TLA), 156 Timestamp, Tinyint data type, 9 TOP keyword, Top percentage queries, 61 Transaction object, Triggers creating, for soundalike searches, TRUSTED_CONNECTION, Try-Catch block for archive routine, 191, 192 with DBConcurrencyException, for production code, 165 Typed DataSets, U Unchanged enumeration, 205 Unions. See Queries Unique property, 202 UniqueConstraint, UniqueIdentifier data type, 10 Update commands with CommandBuilder object, concurrency conflicts and, embedding business logic in, with ExecuteNonQuery method, 173, explicit update commands, setting, for SQL data manipulation, Update method, 234, 235, UpdateCommand object, UpdateRule property, Updates, cascading, USE command, 107 User Control, 402 User interaction, 197 User interface, Username, 92 V Validation rules, 45, 46 Values, 268, 269 VAR function, 71 Varbinary data type, 10 Varchar data type, 10 VB.NET. See Visual Basic.NET (VB.NET) View Designer, Views. See also DataView object for data access control, displaying text of, queries and, Virtual directories, Virtual names, Visio. See Microsoft Visio Visual Basic.NET (VB.NET) data binding with, 36 data in middle-tier, enumeration representation with, middle tier in, MSDE and, 86 nonsupport of ItemData property, 279 upgrading to, 2 XML and, 318 Visual Database tools, 294, 299

11 Index 441 Visual Studio Toolbox, , Visual Studio.NET (VS.NET) concurrency conflicts in, 267 Connection object and, database creation with, database project, database references, 296 DDL commands and, 78 features of, 2 libraries available in, 412 MSDE and, 86 Odbc provider and, 160 queries, scripts, viewing data, W W3C (World Wide Web Consortium), 423 Web Reference, Web Services.NET Framework and, 412 accessing programmatically, described, exposing objects through, Web Services Description Language (WSDL), 423, 427 Web sites for code listings, 329 for code samples, 402 for SQLXML 3.0, 329 on XML, 320 WebForms, , See also ASP.NET WHERE clause concurrency conflicts and, 267, 268, 269 operators in, specifying criteria with, update commands and, 254 WHERE criteria, 74 While loop, Wildcard characters, 58 Windows API (Application Programming Interface), 159 Windows Authentication Mode, Windows Forms applications binding, programmatic, data-aware controls in.net, data-bound forms and, data browser application, creating, data browser, updating records in, records, working with, user interface overview, 36 validation, database engine level, 46 World Wide Web Consortium (W3C), 423 WriteSchema, 355 WSDL (Web Services Description Language), 423, 427 X XML Path Language (XPATH). See also EXtensible Markup Language (XML) described, 320, 321 working with, XmlDataDocument Object, XmlDocument, XMLNode, XmlReader, XMLReadMode, 348, 355 XMLWriteMode, 355 XPATH. See XML Path Language (XPATH)

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